patch-1.3.56 linux/include/linux/pagemap.h

• Lines: 17
• Date: Mon Jan 8 08:14:54 1996
• Orig file: v1.3.55/linux/include/linux/pagemap.h
• Orig date: Sat Jan 6 19:10:40 1996

diff -u --recursive --new-file v1.3.55/linux/include/linux/pagemap.h linux/include/linux/pagemap.h
@@ -39,6 +39,16 @@
 
 #define page_hash(inode,offset) page_hash_table[_page_hashfn(inode,offset)]
 
+static inline int page_age_update(struct page * page, int accessed)
+{
+	unsigned int age = page->age;
+	if (accessed)
+		age |= PAGE_AGE_VALUE << 1;
+	age >>= 1;
+	page->age = age;
+	return age > (PAGE_AGE_VALUE >> 1);
+}
+
 static inline struct page * find_page(struct inode * inode, unsigned long offset)
 {
 	struct page *page;